Cutting device



Jan. 5, 1932.

H. R. S CHUTZ 1,839,882

CUTTING DEVICE Filed Sept. 12, 1927 3 Sheets-Sheet l H. R. SCHUTZCUTTING DEVICE Jan. 5, 1932.

Filed Sept. 12, 1927 3 Sheets-Sheet 2 gwuentoz:

WW W, WW5

Jan. 5, 1932. w H. R. SCHUTZ CUTTING DEVICE Filed Sept. 12,- 1927 5Sheets-Sheet 3 Patented Jan. 5, 1932 UNHTED STATES ?ATENT OFFICE HAROLDR. SOHUTZ, OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO LIBBEY-OWENS-FORD GLASS COMPANY, OF TOLEDO, OHIO, A CORPORATION OHIO CU TTIN GDEVICE Application filed September 12, 1927. Serial No. 219,003.

This invention relates to a device adapted for use in cutting sheetmaterial, as for example, in cutting rolled glass just after it leavesthe rolls and while it rests on the tables used for carrying the glassto the leer.

The general object of the invention is to providea suitable cuttingdevice with mechanism for operating the same in co-ordination with aseries of traveling tables, which are adapted to receive the plasticglass in a continuous ribbon, as it is delivered from the rolls. so thatthe glass is cut into plates of suitable size, without any delay,preparatory to its introduction into the leer.

More specifically stated, the invention comprises a cutting elementmounted on a carriage which is moved along with one ofv the tables,while the cutting element is moved across the glass to sever the same,after which the carriage and cutting element, as the tables continuetheir travel, are restored to their original positions, in readiness forthe next severing operation.

'T he invention consists further in various novel combinations ofelements, the objects and advantages of which will be more particularlydescribed in connection with the accompanying drawings illustrating thepreferred embodiment of the same.

In the drawings:

Figure 1 is a sideelevation of the invention operatively associated withthe delivery end of a glass rolling machine.

Fig. 9. is a cross sectional view taken substantially on the line 22 ofFig. 1, showing the cutter in its initial position.

Fig. 3 is a partial cross section similar to Fig. 2. but on a largerscale, and showing the cutter after the glass has been severed.

Fig. 4 is an enlarged detail sectional view taken transversely of thecutting element.

,Fig. 5 is a partial plan view of the invention after the cutter hasstarted to move forwardly with the tables and after the cutting strokehas been completed.

I cutter.

As herein shown, the invention is associated with the delivery end of arolling. machine 5. Associated with the rolling machine are a series oftables 6 which have a slow continuous travel in timed relation to theoperation of the rolling machine so as to receive the glass as it isdelivered'in a continuous ribbon from the rolls. These tables aresupported on wheels 7 which are guided on v tracks 8.

The cutting device comprises a carriage 9 having laterally disposed stubshafts or axles 10 on which are mounted rollers 11. These rollers areguided on tracks 12 which are supported on stands 13 mounted on bases 14at the sides of the table runway. Thus, the carriage is supported'abovethe path of the tables and is guided for movement in the same directionas the tables. Secured to the stands 13 are overhanging extensions 15carrying guide bars 16 which are located over the rollers 11 with aslight clearance so that the knife cannot tip out of its proper positionduring the cutting of the glass.

The carriage has two channel bars 17 which are disposed transverselyabove the table in spaced relation to each other and connected at theirends by frame pieces 18. The cutter comprises blades 19 secured toopposite faces of a girder 20 which is reinforced by angle bars 21secured to its upper portion and connected by a transverse header 22.The girder 20 is secured at its ends to vertical slides 23 which areadapted to move upwardly or downwardly in guideways 24 secured to thecarriage 9. r

Each slide 23 carries at its lower end-two rollers 25 and 26 which aremounted on a transverse pin 27. It is through the medium of theserollers that the position of the cutting element is determined. In itsinitial position, each roller 26 rests on a short track 28'secured tothe upper end of a stand 29 mounted on the base 14. Each table 6 carriesan abutment 30 which is adapted to engage the roller 25 and to advancethe cutting element together with the carriage 9 at the same rate oftravel as the table. Soon after the knife begins to advance, the rollers26 leave the endsof the tracks 28 and permit the knife todrop to theposition shown in Fig. 3. As the cutting element drops, it is cushionedby bumpers 31 which are yieldably held in the ends of the carriage bysprings 32 and are engaged by lugs 33 on the upper ends of the, slides23.

After the cutting element has dropped, the rollers 26 are free and therollers 25 are engaged only by the abutments 30. As the carriagecontinues its advance, however, each of the rollers 26 engages a camtrack 34 WhlCh is inclined upwardly and forwardly until it reaches ahigher level than that of the track 28. When this point is reached, theroller 25 rides over the upper end of the abutment 30 and permits thecarriage to return to its initial position. In the return of thecarriage, the roller 25, as it passes over the abutment or pusher 30,rides quickly along a horizontal track 35 secured to the edge of thetable, until the carriage is stopped with the roller 26 above the track28. Then as the table continues to advance, the roller 25 rides along aninclined track 36, which is avcontinuation of the track35, thuspermitting the carriage to descend gradually until the roller 26 againrests on the track 28. The carriage then remains at rest until, as thetables continue their travel, the abutment 30 of the next table en gagesthe roller 25.

In order to provide the force necessary for returning the carriage toits initial position, a cable 37. is attached to each side of the car-'riage and passes rearwardly about a sheave 38 mounte on a stud 39secured to the rear stand 13. The table extends thence forwardly over asheave 40 similarly mounted on the front stand 13. The front end of thecable carries a weight 41. which is suspended in a well 42. As thecarriage advances with the table, therefore, the cable is drawnforwardly with the carriage, raising the weight 41. It is to beunderstood that there is a weight 41 at each side of the carriage andthese weights are suflicient to return the carriage to its initialposition as soon as it is released. A-suitable buffer 43 of rubber orthe like Is attached to the end stand of the rolling machine and acts asa stop for the carriage at the completion of its return movement.

It is to be noted that the cutting element comprises two downwardlydiverging blades 19, which as the cutting element descends, are broughtinto shearing relation to blades 44 secured to the adjacent ends of thetables. The edge-of each blade 19 is lowest at the center and inclinesupwardly toward each end so that the cutting action will not besimultaneous across the full width of the table but will start at thecenter and progress rapidly toward each side. By the mechanism abovedescribed, the travel of the carriage is accurately gaged inco-ordination with the travel of the tables so that the cutting element,as it descends, registers accurately with the cooperating ledger blades44.

The sudden downward movement of the cutting element insures a quick,clean shearing action and the knife is then gradually raised clear ofthe table. The forward movement of the table advances the carriage andalso by raising the weights 41 serves to store up the necessary energyfor returning the carriage to its initial position.

While I have shown and described the present construction inconsiderable detail. it

is to be understood that this is only for the purpose of illustrationand that various modifications may be made therein without any materialdeparture from the scope of the invention as claimed.

What I claim is:

1.'In a device of the character described, a traveling table forsupporting the material to be cut, a carriage, means at opposite sidesof the table'for supporting said carriage for travel above the table,means for moving the carriage forwardly in predetermined relation to thetable, a horizontal cutting element guided for vertical bodily movementwith respect to the carriage, stationary means at opposite sides of thetable outwardly thereof for initially supporting the cutting element,and means for moving said cutting element forwardly with the carriage tocause said cutting element to leave said initial supporting means andmove downwardly and then upwardly across the plane of the materialduring the forward travel of the carriagewith the table.

2. In a device of the character described, the combination with atraveling table for supporting the material to be cut, of a carriage,means at opposite sides of the table for supporting said carriage fortravel above the table. means for moving the carriage forwardly with thetable and in predetermined relation thereto for a certain distance. ahori zontal cutting element guided for vertical bodily movement withrespect to the carriage. stationary means at opposite sides of the tableoutwardly thereof for initially supporting the cutting element, meansfor moving the cutting element forwardly with the carriage to cause saidcutting element, during its forward travel, to leave the initialsupporting means and move downwardly and then upwardly across the planeof the material, and means for returning the carriage to its initialposition after its upward movement, while the table continues itsforward travel.

3. In a device of the character described, the combination with alongitudinally traveling table for support-ing the material to be cut,of a carriage, means at opposite sides of the table for supporting saidcarriage for travel above the table, a horizontal cutting element guidedfor up and down bodily movement with respect to the carriage, means formoving the carriage forwardly in such relation to the table that theedge of the table is in the path of movement of the cutting element,stationary means at opposite sides of the table outwardly thereof forinitially supporting the cutting element, and means for moving saidcutting element forwardly with the carriage to ause the cutting elementto leave the initial supporting means and move downwardly into shearingrelation to the edge of the table, and then upwardly away from the sameduring the forward travel of the carriage with the table.

4. In a device of the character described, the combination with alongitudinally traveling table for supporting the material to be cut, ofa carriage, means at opposite sides of the table for supporting saidcarriage for travel above the table, a horizontal cutting element guidedfor up and down bodily movement with respect to the carriage, means formoving the carriage forwardly for a certain distance in such relation tothe table that the edge of the table is in the path of movement of thecutting element, stationary means atopposite sides of the tableoutwardly thereof for initially supporting the cutting element, meansfor moving said cutting element forwardly with the carriage to cause thecutting element to leave said initial supporting means and move with ashearing relation to the edge of the table and then away from the sameduring the forward travel of the carriage with the table. and means formoving the carriage rearwardly to its initial position after thecompletion of the upward movement of the cutting element, while thetable continues its forward travel.

5. In a device of the character described, the combination with a seriesof tables arranged in spaced endto end relation, of-a carriage, means atopposite sides of the table for supporting said carriage for travelabove the tables, means for moving the carriage forwardly inpredetermined relation to the tables. a horizontal cutting elementguided for bodily movement up and down with respect to said carriage,stationary means at opposite sides of the table outwardly thereof'forinitially supporting the cutting element, and

means for moving the cutting element forwardly with the carriage tocause said cutting element to leave said initial supporting means andmove into shearing relation to the adjacent ends of two tables and thenaway from the same while said carriage is traveling forwardly with saidtables.

6. The combination with a series of tables mounted for longitudinaltravel and arranged in spaced end to end relation, of a carriage, meansat opposite sides of the table for supporting said carriage for travelabove the tables, means for moving the carriage forwardly for a certaindistance in predetermined relation to the tables, a horizontal cuttingelement guided for bodily movement up and down with respect to saidcarriage, stationary means at opposite sides of the table outwardlythereof for initially supporting the cutting element. means for movingthe cutting element forwardly with the carriage to cause said cuttingelement to leave said initial supporting means and move into shearingrelation to the. adjacent ends of two tables and then away from the samewhile said carriage is traveling forwardly with said tables. and meansfor then moving the carriage rearwardly to its initial position,preparatory to a similar operation on the next two table ends.

7. The combination with a traveling table for supporting material to becut, of a carriage, means at opposite sides of the table for supportingsaid carriage above the table. a frame mounted on said carriage, anabutment secured to the table and engageable with a portion of the frameto advance said frame and carriage with the table, a horizontal cuttingelement mounted on the frame. stationary means at opposite sides of thetable outwardly thereof for initially supporting said cutting element,means for moving the cutting element forwardly with the carriage tocause a movement of the frame with respect to the carriage to cause saidcutting element to cut the material carried by the table during theforward travel of said carriage, and means for releasing the frame fromsaid abutment after the carriage has been advanced to a predeterminedpoint.

8. The combination with a series of traveling tables in spaced end toend relation of a carriage, means at opposite sides of the tables forsupporting said carriage above the path of the tables, a frame mountedon said carriage, an abutment secured to each table and engageable witha portion of the frame to advance said frame and carriage with thetable. a horizontal cutting element mounted on the frame. stationarymeans at opposite sides of the tables outwardly thereof for initiallysupporting said cutting element. means for moving the cutting elementforwardly with the carriage to cause a movement of the frame withrespect to the carriage to cause said cutting element to cut thematerial carried by the table during the forward travel of saidcarriage, means for releasing the frame from said abutment after thecarriage has been advanced to a predetermined point, and means forautomatically returning said carriage, as soon as it is released, to itsinitial and down with respect to the carriage, a. hori-- zontal cuttingelement carried by the frame, means for moving the carriage and frameforwardly with the table, stationary means at opposite sides of thetable outwardly thereof for supporting said cutting element during thefirst part of its forward movement and then permitting it to drop, meansfor gradually raising the cutting element as it continues to travelforwardly with the table, and means for automatically returning thecutting element and the carriage to their initial position after thecutter has been raised to a predetermined height.

10. The combination with a traveling table for supporting material to becut, of a carriage guided for longitudinal movement, a

frame movable up and down with respect to the carriage, a cuttingelement carried by the frame, means for moving the carriage and I frameforwardly with the table, rollers car ried by said frame, a short trackengageable by each roller for supporting said cutting ,element above thetable in its initial position,

" permitting the cutter to drop as the roller reaches the end of thetrack, cam tracks engageable by said rollers to raise the cuttingelement as it continues to travel with the table, and means carried bythe table and cooperating with said rollers to return the carriage andcutting element automatically to their initial position. a

11. The combination with a traveling table for supporting material to becut, of a car'- riagc, means at opposite sides of the table forsupporting said carriage for travel above the table, means for movingthe carriage forwardly in predetermined relation to the table for acertain distance, a horizontal cutting element guided for up and downmovement with respect to the carriage, stationary means at oppositesides of the ,table outwardly thereof for initially supporting saidcutting element, means for moving the cutting element forwardly with thecarriage to cause said cutting element, during its forward travel, toleave the initial supporting means and move downwardly and then upwardlyacross the plane of the material, and motive means in a which energy isstored up by the forward movement of the carriage for returning said r,

carriage to its initial position as soon as it is released from thetable.

12. The combination with a series of traveling tables arranged in spacedend to end relation for supporting material to be cut, of a carriage,means at opposite sides of the table for supporting said carriage abovethe path of the tables, a frame mounted for vertical reciprocation onthe carriage, an abutment secured to each table and engageable with aportion of the frame to advance said frame and'carriage withthe table, ahorizontal cutleasing the frame from said abutment after the carriagehas been advanced to a predetermined point and motive means which is setby the forward movement of the carriage for returning said carriage toits initial position as soon as it is released from theabutment,preparatory for engagement by the abutment on the next table. 7

13. The combination with a carriage mounted for substantially horizontalmovement to and fro, of a horizontal frame slidable bodily up and downwith respect to said carriage, a cutter secured to the frame, meanspositioned at opposite sides of the table outwardly thereof for holdingsaid frame raised in its initial position but allowing it to drop afterits forward movement is begun, means for gradually raising said frame asthe carriage continues to move forwardly and means for then returningthe carriage to its initialposition. a

14. The combination with a carriage mounted for substantially horizontalmovement to and fro, a horizontal frame slidable bodily up and down withrespect to said carriage, a cutter securedJzo-the frame, meanspositioned at opposite sides of the table outwardly thereof for holdingsaid frame raised in its initial position but allowing it todrop afterits forward movement is begun, means for gradually raising said frame asthe carriage continues to move forwardly, motive means in which energyis stored by the forward vmovement of the carriage and means forreleasing said motive means as the carriage completes its forwardmovement whereby to return the carriage to its init al position.

15. The combination with a carriage mounted for substantially horizontalmovement to and fro, a horizontal frame slidable bodily up and down withrespect to said carriage, a cutter secured to the frame, meanspositioned at opposite sides of the table outwardly thereof for holdingsaid frame raised sition.

16. The combination with a series of tables mounted for longitudinaltravel and arranged in spaced end to end relation and adapted to receivea continuous ribbon of glass as it comes from the rolls, of a cuttingelement, a horizontal track initially supporting said cutting-element,means for temporarily advancing the cutting element at the same speed asthe tables, until it leaves the track and drops into shearing relationto two adjacent table ends simultaneously during the forward travelthereof, said last mentioned means also constituting a guide for thecutting element during all of its downward travel.

17 The combination of a series of traveling tables in spaced end to endrelation, of a cutting element. a horizontal track on which said elementinitially rests independently of the table, means actuated byra tablefor causing said cutting element to leave the end of the track and todrop bodily into shearing relation to the adjacent ends of two tablesduring their forward travel, and means for subsequently raising saidcutting element and returning it to its initial position, preparatory tobringing it into shearing relation to the nexttwo table ends.

18. The combination'with a series of tables mounted for longitudinaltravel, a horizontal cutting device, stationary means positioned atopposite sides of the tables outwardlythereof for initially supportingthe cutting device above the path of the tables, an abutment on eachtable engageable with the cutting device'to move it from its initialsupport and permit it to drop bodily as the table moves forwardly, meansfor lifting the cutting device above said abutment during its forwardtravel with the table, means for subsequently moving the cutting devicerearwardly, and means for supporting the cutting device in its upperposition during its rearward travel and then lowering it to its initialsupport.

19. The combination with a series of tables mounted for longitudinaltravel, a carriage mounted for-movement in the same directionwith thecutting member to move the same forwardly with the carriage to' causethe cutting member to leave said track and drop by gravity, means forsubsequently lifting the cutting element above said abutment during itsforward travel with the table, means for then moving the cutting elementand carriage rearwardly, and means for supporting the cutting element inits uppermost position during its rearward travel and then lowering itto the initial supporting track.

In testimony whereof I have hereunto signed my name to thisspecification.

HAROLD R. SCHUTZ.

slu

